Table 2

Mean weight of all singleton births and in the four Townsend quartiles together with the difference in mean weight between the lower (least deprived) and upper (most deprived) quartiles

		Townsend material deprivation score
Year	Mean weight all births	Lower quartile (LQ)	Mid-lower quartile	Mid-upper quartile	Upper quartile (UQ)	Difference in g (LQ−UQ)
1990	3391	3457	3435	3359	3316	141
1991	3408	3436	3449	3407	3342	94
1992	3422	3456	3427	3446	3356	100
1993	3394	3447	3413	3421	3298	149
1994	3417	3484	3434	3425	3329	155
1995	3409	3480	3455	3396	3313	167
1996	3406	3483	3418	3403	3332	151
1997	3399	3473	3436	3396	3305	168
1998	3413	3497	3426	3416	3330	167
1999	3416	3497	3450	3398	3339	158
2000	3434	3494	3424	3463	3375	119
2001	3407	3463	3425	3425	3337	126